J/PASJ/65/103ivo://CDS.VizieR/J/PASJ/65/103doi:10.26093/cds/vizier/bj-21-37CDSYamada R.Oyabu S.Kaneda H.Yamagishi M.Ishihara D.Kim J.H.Im M.2026-03-17T20:05:25Z2014-05-01T14:45:53ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesinfrared-sourcesinfrared-photometryFor star-forming galaxies, we investigated a global relation between the polycyclic aromatic hydrocarbon (PAH) emission luminosity at 3.3um, L_PAH3.3_, and the infrared (8-1000um) luminosity, L_IR_, to understand how the PAH 3.3um feature relates to star-formation activity. With AKARI, we performed near-infrared (2.5-5um) spectroscopy of 184 galaxies having L_IR_~10^8^-10^13^L_{sun}_. We classified the samples into infrared galaxies (IRGs: L_IR_<10^11^L_{sun}_), luminous infrared galaxies (LIRGs: L_IR_~10^11^-10^12^L_{sun}_ and ultra-luminous infrared galaxies (ULIRGs: L_IR_>10^12^L_{sun}_). We excluded sources likely to be contaminated by AGN activity, based on the rest-frame equivalent width of the PAH emission feature (<40nm) and the power-law index, representing the slope of continuum emission ({Gamma}>; F{nu}{prop.to}{lambda}^{Gamma}). Of these samples, 13 IRGs, 67 LIRGs, and 20 ULIRGs show the PAH emission feature at {lambda}_rest_=3.3um in their spectra. We find that the L_PAH3.3_/L_IR_ ratio considerably decreases toward the luminous end. Utilizing the mass and temperature of dust grains as well as the Br{alpha} emission for the galaxies, we discuss the cause of the relative decrease in the PAH emission with L_IR_.2013PASJ...65..103Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASJ/65/103CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/297 : AKARI/IRC mid-IR all-sky Survey (ISAS/JAXA, 2010)II/298 : AKARI/FIS All-Sky Survey Point Source Catalogues (ISAS/JAXA, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASJ/65/103https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/PASJ/65/103http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/PASJ/65/103https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/PASJ/65/103https://vizier.iucaa.in/viz-bin/votable?-source=J/PASJ/65/103http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/PASJ/65/103GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/PASJ/65/103/pah3 (Basic properties of the galaxies with a significant (table1) or non-significant (table2) detection of the PAH 3.3{mu}m emission feature)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASJ/65/103/pah3?https://vizier.iucaa.in/viz-bin/conesearch/J/PASJ/65/103/pah3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASJ/65/103/pah3?GETtext/xml+votable180.050000true6.9573333-57.59036110.005555555555555556Cone search capability for table J/PASJ/65/103/ir_gal (Properties of infra-red galaxies (table3), and Luminous Infra-Red Galaxies (table4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/PASJ/65/103/ir_gal?https://vizier.iucaa.in/viz-bin/conesearch/J/PASJ/65/103/ir_gal?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/PASJ/65/103/ir_gal?GETtext/xml+votable180.050000true35.4025-64.6097220.0055555555555555566/226 295 700 2110 4993 5523 5541 5865 6009 6070 6078 6348 6477 7954 8051 8266 8997 9770 9791 9895 10081 10115 10118 10144 10281 10321 10465 10536 10716 10858 10892-10893 11029 11257 11273 11624 11688 11690 11715 11829 11862 11893 11908 11913 12060 12239 13523 14164 16045 16690 16758 16833 17080 17183 17252 17515 17582 17931 17985 18406 18432 18683 18753 19070 19235 19283 19386 19433 19619 20060-20061 20118 20187 20208 22721 23339 24855 24916 24957 25462 25604 25610 26198 26264 26270 26359 26580 26811 26932 27397 27976 28188 31267 31466 31503 32930-32931 33248 33251 33325 33355 33374 33393 33558 33610 33613 33930 34123 34213 34264 34790 34917 34930 34949 34960 34963 34980 34983 35040 35067 35180 35182 36241 38129 43298 43925 45112 45258 45525 45875 46811 46882 47543 483957.873702498227298e-21 9.710690472292815e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/PASJ/65/103?format=asciiInfrareddefaultJ/PASJ/65/103/pah3Basic properties of the galaxies with a significant (table1) or non-significant (table2) detection of the PAH 3.3{mu}m emission featurerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintE3meta.notecharNameObject name in the AKARI/IRC all-sky survey point source catalogmeta.id;arith.zp;meta.tablecharIRmeta.notecharRAJ20002MASS right ascension (J2000)pos.eq.ra;meta.mainDEJ20002MASS declination (J2000)pos.eq.dec;meta.mainzRedshiftsrc.redshiftfloatl_F9umLimit flag on 9ummeta.code.errorcharF9umAKARI S9W (9{mu}m) flux densitiesmJyphot.flux.density;em.IR.8-15umfloate_F9um? rms uncertainty on F9ummJystat.errorfloatnullablen_F9um[*] Flux from AKARI images (1)meta.notecharl_F18umLimit flag on 18ummeta.code.errorcharF18umAKARI L18W (18{mu}m) flux densitiesmJyphot.flux.density;em.IR.8-15uminte_F18um? rms uncertainty on F18ummJystat.errorintnullablen_F18um[*] Flux from AKARI images (1)meta.notecharKsmagKs magnitude taken from the 2MASS catalogmagphot.mag;em.IR.KfloatLIR? IR (8-1000um) luminosity (G1)1e+11solLumphys.luminosity;em.IRdoublenullableIRCDisplay the AKARI/IRC data (Ishihara et al., 2010, Cat. II/297)meta.ref.urlcharJ/PASJ/65/103/ir_galProperties of infra-red galaxies (table3), and Luminous Infra-Red Galaxies (table4)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIRmeta.code.classcharPAHmeta.notecharNameObject name(s)meta.id;meta.maincharLIRIR luminosity (G1)1e+11solLumphys.luminosity;em.IRfloatl_L3.3Limit flag on L3.3meta.code.errorcharL3.3Luminosity of the PAH 3.3um emission1e+08solLumphys.luminosityfloate_L3.3? Luminosity of the PAH 3.3um emission1e+08solLumstat.errorfloatnullablel_LBraLimit flag on LBrameta.code.errorcharLBraLuminosity of the Br{alpha} emission1e+07solLumphys.luminosityfloate_LBra? Luminosity of the Br{alpha} emission1e+07solLumstat.errorfloatnullablel_tau3.1Limit flag on tau3.1meta.code.errorchartau3.1Optical depth {tau}_3.1_ of the 3.1um H_2_O absorption featurephys.absorption.opticalDepthfloatl_EW3.3Limit flag on EW3.3meta.code.errorcharEW3.3Rest-frame equivalent width of the PAH3.3um emissionnmspect.line.eqWidthfloatGammaPower-law index {Gamma} representing the slope of continuum emissionmeta.code;spect.index;spect.continuumfloatSpTNear-IR type based on the PAH 3.3um emission detection and {Gamma} (2)meta.code.classcharTdustDust temperature (3)Kphys.temperaturefloatLdustDust luminosity (3)1e+07solMassphys.luminosityfloatIRCDisplay the AKARI/IRC data (Ishihara et al., 2010, Cat. II/297)meta.ref.urlchar_RAPosition from Simbad or Name (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad or Name (declination part)degpos.eq.dec;meta.main